Comment 32 for bug 297263

I have a HP Mini 1000 (well, actually a Compaq 702EA, but they're the same thing), and I'm running Karmic 9.10. I had the same problem that is being reported here, but fixed it in a slightly different way (I think 9.10 does grub a little differently). Here's what I did:

sudo gedit /etc/default/grub

Change this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_os_name=Linux"

Save, then run this:

sudo /usr/sbin/grub-mkconfig

Job done!